Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 116 for “"Substation"”.
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Critical Substation Risk Assessment and Mitigation
Substations are joints in the power system that represent nodes that are vital to stable and reliable operation of the power system. They contrast the rest of the power system in that they are a dense combination of critical components causing all of them to be simultaneously vulnerable to one …
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Low cost integrated substation protection and control system
… and transducers the development of integrated substation protection and control systems were possible. In this thesis the use of the currently available very sophisticated and reliable, yet inexpensive high level third generation software to develop such application is dicussed. Low cost …
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Optimal Substation Coverage for Phasor Measurement Unit Installations
… portion of the deployment cost, but rather the substation installation. In a recently completed large-scale deployment of PMUs on the EHV network, Virginia Electric & Power Company (VEPCO) has found this to be so. The assumption then becomes that if construction work is done in a substation, …
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Determining preferred substation configurations based on reliability and cost
Many different substation configurations exist, each with its own space requirements, reliability and cost. Distribution planners need to choose between these numerous layouts and suggest the preferred substation configuration for future networks, but often don't understand the advantages and total …
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Studies of Monitoring and Diagnosis Systems for Substation Apparatus
Substation apparatus failure plays a major role in reliability of power delivery systems. Traditionally, most utilities perform regular maintenance in order to prevent equipment breakdown. Condition-based maintenance strategy monitors the condition of the equipment by measuring and analyzing key …
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EMAT-based diagnostic technique with applications to substation ground mat risers
Includes bibliographical references (page 99).
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Incorporating substation and switching station related outages in composite system reliability evaluation
This thesis presents the development of a new method for incorporating station related outages in composite or bulk system reliability analysis. Station related failures can cause multiple component outages that can propagate to other parts of the network resulting in severe damages. In order to …
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Design & Implementation of a Universal Communications Processor for Substation Integration, Automation and Protection
Substation Automation (SA) is a rapidly increasing area of interest in Electrical Engineering these days embracing numerous benefits to utilities. It is clearly the most dynamic and exciting new development in the substation industry with the ultimate goal of efficiently managing operations, …
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The Average Potential Method of Calculating the Resistance of Power Substation Grounding Systems.
… for modeling the grounding systems of power substations in detail. Equations are derived for calculating the self resistance of each component of the grounding system and for calculating the mutual resistances between each component of the grounding system. Next, techniques are developed for …
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Use of Battery Systems for VAR Support in Con Edison’s Distribution Network/Substation
… grid connected BESS located at Con Edison substations have been modeled in MATLAB/Simulink. Preliminary assessment of the system showed that DC current to/from the battery is oscillating (non-zero) during reactive power support which equates to having an adverse effect on battery lifetime. …
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Estimation of the Developed Overvoltages at the Entrance of a HV/MV Substation
… can cause several damages to a HV/MV substation, leading to insulation breakdowns. The appropriate protection of the substation against external overvoltages is critical, in order to ensure the efficient, reliable and safe operation of the system. Shielding wires, mast and surge …
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Geomagnetically induced current sensitivity to assumed substation grounding resistances in the power system
… estimation is challenging because it depends on substation grounding resistances, which 1) depend more on the local soil and earth conditions than the construction of the substations themselves and 2) can vary by more than an order of magnitude, from 0.05 to 1.5 ohms. Substation grounding …
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Development of Industrial Internet of Things Architecture and Business Strategy for Digital Substation Asset Management
… company that is a market leader in electrical substation component manufacturing, especially the on-load tap changer for transformers. However, as changes in the industry are creating new competitors and demand for higher quality and efficiency, there is now an increased need to employ new …
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Location, Location, Substation? How Battery Energy Storage Systems (BESS) Can Create Value in Unexpected Places
… structure. However, its proximity to a major substation and the increasing local demand for electricity make it an ideal candidate for a BESS project. This thesis demonstrates how integrating energy storage into the redevelopment of the site can enable an otherwise financially infeasible …
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Dynamic-systems analysis of self-excitation associated with a capacitor-coupled substation (CCS) - induction machine system
The purpose of this thesis is therefore to establish the cause of SSR at the Meru-Petronet system, and other similar systems, and investigate various compensation techniques.
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Power distribution feeder response to the asymmetric saturation of substation transformers caused by significant high-side DC currents.
High-altitude electromagnetic-pulse and geomagnetic disturbances can lead to asymmetric saturation of utility transformer cores by causing significant DC current to flow through the transformer windings. Transformer secondary voltage and current waveforms are distorted by core saturation and this …
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